Slavery : United Nations Conference of Plenipotentiaries on a supplementary Convention on the Abolition of Slavery, the Slave Trade, and Institutions and Practices similar to Slavery, held at Geneva, Switzerland, from Aug. 13 to Sept. 4, 1956 : final Act and supplementary Convention.
Great Britain.His Majesty's Stationery Office.
United Nations,issuing body.
"March, 1957."
"1957.XIV.2."